The problem with hoeing in winter chipchopper is that the ground is usually wet. Any weeds hoed off often root back in and seeds that are dormant won't be interrupted by hoeing.
If you want to go a step further then try Flazasil or Paradise.This is used in the agri industry for long term clearance.I'ts a residual herbicide and most weeds wont return for 6 months.....but it aint cheap